CC IOS

w, h = term.getSize()
os.loadAPI("iosutils")
os.loadAPI("iosvars")

function resetScreen()
  term.setBackgroundColor(iosvars.backgroundColor)
  term.clear()
  term.setCursorPos(w, 1)
  if iosvars.wifi then
    term.setBackgroundColor(colors.red)
    term.write(" ")
  else
    term.setBackgroundColor(colors.black)
    term.write(" ")
  end
end

function initializeApps()
  appPage = {}
  pg = 1
  cnt = 1
  os.loadAPI("iostabs")
  os.loadAPI("iostabsinit")
  if iosvars.wifi then
    rednet.open("back")
  else
    rednet.close("back")
  end
  for i, v in pairs(iostabs.appsinit) do
    appPage[pg] = {}
    if iostabs.appsinit[i] then
      appPage[pg][cnt] = iostabs.appsinit[i][5]
      cnt = cnt + 1
    end
    if cnt == 10 then
      pg = pg + 1
      cnt = 1
    end
  end
end

function drawApps()
  for i = page * 9 - 9, page * 9 do
    if iostabs.appsinit[i] then
      paintutils.drawImage(iostabs.appsinit[i][5], iostabs.appsinit[i][1] - (page - 1) * w, iostabs.appsinit[i][2])
    end
  end
end

function appcheck(x, y, x2, y2, run)
  if (clickTab[3] >= x and clickTab[3] <= x2) and
  (clickTab[4] >= y and clickTab[4] <= y2) then
    --print("recieved"..tostring(x).." "..tostring(y).." "..run)
    shell.run(run)
  end
end

function click()
  clickTab = {os.pullEvent("mouse_click")}
  return clickTab
end

function drag()
  dragTab = {os.pullEvent("mouse_drag")}
  return dragTab
end

page = 1
while true do
  os.loadAPI("iosvars")
  initializeApps()
  resetScreen()
  drawApps()
  term.setCursorPos(1, h)
  --term.write("Page: " .. page)
  parallel.waitForAny(click, drag)
  if clickTab then
    for i = page * 9 - 8, #iostabs.appsinit do
      appcheck(iostabs.appsinit[i][1] - (page - 1) * w, iostabs.appsinit[i][2], iostabs.appsinit[i][3] - (page - 1) * w, iostabs.appsinit[i][4], iostabs.appsinit[i][6])
    end
  end
  if dragTab then
    if math.abs(clickTab[3] - dragTab[3]) > 15 then
      dir = math.abs(clickTab[3] - dragTab[3]) / (clickTab[3] - dragTab[3])
      if not ((page == 1 and dir == -1) or (page == #appPage and dir == 1)) then
        page = page + dir
        for k = 1, w * dir, dir do
          resetScreen()
          for i = 1, #iostabs.appsinit do
            if dir == 1 then
              if i > (page - 1) * 9 - 9 and i <= (page - 1) * 9 + 9 then
                paintutils.drawImage(iostabs.appsinit[i][5], iostabs.appsinit[i][1] - k - w * (page - 2), iostabs.appsinit[i][2])
              end
            elseif dir == -1 then
              if i > (page + 1) * 9 - 18 and i <= (page + 1) * 9 then
                paintutils.drawImage(iostabs.appsinit[i][5], iostabs.appsinit[i][1] - k - w * page, iostabs.appsinit[i][2])
              end
            end
          end
          sleep(.01)
        end
      end
    end
  end
end